House flipping finance NZ

Flips look simple on TV. In real life, margins disappear into holding costs, surprises behind the walls and the sale taking longer than planned.

By Yatin Kainth, Financial Adviser FSP1007497. Last reviewed 6 October 2026

Short answer

House flipping finance in NZ is short-term lending, usually 6 to 18 months, to buy a property, renovate it and sell. Banks lend on some flips as investment property, but many flippers use non-bank lenders who fund part of the renovation and may capitalise interest. Profits from flipping are taxable income, and lenders want a realistic budget and resale value.

Will the flip make money?

Purchase price ($)Renovation budget ($)Expected sale price ($)Months from purchase to saleAmount borrowed ($)Loan interest rate (%)

Total costs

–

Interest and holding costs

–

Profit before tax

–

Return on your cash

–

Assumes about 1% plus $3,000 to buy (legal, valuation, inspections), 3.5% to sell (agent and marketing), $900 a month in rates and insurance, and a 10% renovation contingency. Profit is taxable income. GST may apply if you’re registered.

How lenders look at a flip

Purchase LVR: banks may lend 60 to 70% on the purchase price. Non-bank lenders may go higher and fund part of the work.
Renovation funding: often paid in stages against invoices or a QS report, like a renovation loan.
Exit: an "as is" and "as if complete" valuation, and a realistic sale plan.
Your experience: past projects, or a trusted builder, help a lot.

Tax on flipping property

If you buy a property with the intention of selling it, the profit is taxable regardless of how long you hold it. The bright-line test is a separate rule and doesn't make a flip tax-free. Interest and costs are generally deductible against the profit. Get advice from your accountant before you buy. See IRD's property guidance.

Talk it through

I'm Yatin Kainth, a Financial Adviser at Mortgage Sense in Hobsonville, Auckland (FSP1007497), comparing 30+ lenders. Advice is provided under the Mortgage Managers licence (North West Group Holdings Ltd, FSP682791). This page is general information, not personalised advice. See the Disclosure Statement.

Book a free chat or call 022 064 7770.

Common questions

Can I use a normal mortgage to flip a house?

Sometimes, for cosmetic renovations, if you meet investor deposit rules. Bigger projects or short holds usually suit a short-term specialist loan.

Is house flipping profit taxed in NZ?

Yes, if you bought with the intention of selling, the profit is taxable income. Talk to your accountant.

How much deposit do I need to flip a house?

Usually 30 to 40% of the purchase, plus the renovation cost or part of it, depending on the lender.

What's a good profit margin for a flip?

Many experienced flippers want at least 15 to 20% of total cost before tax, to allow for surprises.

Sources

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